The article presents a stability study on a very high cutting in a granitic gneiss, as part of the
construction of a bypass in the French Pyrenees. The preliminary study highlighted …

In order to evaluate the influence of the surface morphology on the mechanical behavior of
twelve natural marble joints, very accurate topography measurements of joint surfaces under …

Recent mathematical calculations allow us to define set fracture intensity (I), ie, the amount
of rock mass affected by fracture sets, independently of the investigation mode. This …

Borehole imagery is a very useful method to obtain discontinuity properties but its limits
should be taken into account. We have worked on the investigations realized on a tunnel …

Laboratory mechanical characterization of natural discontinuities in marble is performed
using a shear test apparatus. Samples with different morphological characteristics are …

Un tunnel est prévu pour dévier la RN 125 autour de la ville de St Béat (Haute-Garonne). Le
site, constitué principalement de calcaire marmoréen se situe dans la zone interne …

A 1 km long tunnel is planned to offer an alternative way round the town of St Béat
(Pyrenees–South of France). The studied zone belongs to the Pyrenean metamorphic …

L'analyse structurale d'un massif rocheux dans le cadre d'un projet de tunnel passe dans la
majorité des cas par une analyse des discontinuités présentes grâce à l'imagerie de paroi …

This paper presents the results on the size effect of a tensile fracture in granite on the shear
behavior determined by direct shear tests with a normal stress of 10MPa. Normal and shear …

The processes of the stochastic generation of a discontinuous rock mass model are
presented in this paper, using the orientation data measured directly in the abandoned …